<template>
    <el-pagination class="pagination-container" :background="background"
                   v-model:current-page="currentPage" v-model:page-size="pageSize" :layout="layout"
                   :page-sizes="pageSizes"
                   :total="total" @size-change="handleSizeChange" @current-change="handleCurrentChange"></el-pagination>
</template>

<script setup lang="ts">
import {scrollTo} from '@/utils/scroll-to';
import {computed, PropType} from 'vue';

const props = defineProps({
    total: {
        required: true,
        type: Number as PropType<number>,
        default: 0
    },
    page: {
        type: Number,
        default: 1
    },
    limit: {
        type: Number,
        default: 10
    },
    pageSizes: {
        type: Array as PropType<number[]>,
        default() {
            return [10, 20];
        }
    },
    layout: {
        type: String,
        default: 'total, sizes, prev, pager, next, jumper'
    },
    background: {
        type: Boolean,
        default: true
    },
    autoScroll: {
        type: Boolean,
        default: true
    },
});

const emit = defineEmits(['update:page', 'update:limit', 'pagination']);

const currentPage = computed<number | undefined>({
    get: () => props.page,
    set: value => {
        emit('update:page', value);
    }
});

const pageSize = computed<number | undefined>({
    get() {
        return props.limit;
    },
    set(val) {
        emit('update:limit', val);
    }
});

function handleSizeChange(val: number) {
    emit('pagination', {page: currentPage, limit: val});
    if (props.autoScroll) {
        scrollTo(0, 800);
    }
}

function handleCurrentChange(val: number) {
    currentPage.value = val;
    emit('pagination', {page: val, limit: props.limit});
    if (props.autoScroll) {
        scrollTo(0, 800);
    }
}
</script>

<style scoped>
</style>
